Make ObjCImplDecl inherit from ObjCContainerDecl.

ObjCContainerDecl now is the root class for objc decls that contain methods.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77235 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReaderDecl.cpp b/lib/Frontend/PCHReaderDecl.cpp
index 3dbea5e..99a1a16 100644
--- a/lib/Frontend/PCHReaderDecl.cpp
+++ b/lib/Frontend/PCHReaderDecl.cpp
@@ -304,10 +304,9 @@
 }
 
 void PCHDeclReader::VisitObjCImplDecl(ObjCImplDecl *D) {
-  VisitNamedDecl(D);
+  VisitObjCContainerDecl(D);
   D->setClassInterface(
               cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
-  D->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
 }
 
 void PCHDeclReader::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
diff --git a/lib/Frontend/PCHWriterDecl.cpp b/lib/Frontend/PCHWriterDecl.cpp
index fba11f8..4239798 100644
--- a/lib/Frontend/PCHWriterDecl.cpp
+++ b/lib/Frontend/PCHWriterDecl.cpp
@@ -297,9 +297,8 @@
 }
 
 void PCHDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) {
-  VisitNamedDecl(D);
+  VisitObjCContainerDecl(D);
   Writer.AddDeclRef(D->getClassInterface(), Record);
-  Writer.AddSourceLocation(D->getLocEnd(), Record);
   // Abstract class (no need to define a stable pch::DECL code).
 }